The Historic Centre of Macau is a place where the Portuguese Empire still echoes in many ways, especially in the streets and the architecture of the oldest buildings, because the tongue and the citizens of are long-gone. One of the last gifts of the metropolis to the colony is a sidewalk art called portuguese pavement (葡式碎石路).
The pavement is made out of black and white stones of basalt and limestone respectively, and is entirely handcrafted, from the design of the entire surface, shaping each cobble, to placing them all according to the design, and finishing by spreading cement mix or soil in between each piece.
This traditional pavement is used in many pedestrian areas in Portugal, but it can also be found anywhere in the old Portuguese colonies such as Brazil and Macau itself.
Unfortunately, these mosaics are excruciatingly hard to create (see the picture above!), and are high-maintenance, thus making the traditional art of the calceteiros (the specialized worker making this mosaics) rare and expensive. Also, the streets and squares paved with this technique tend to be treacherously slippery!